<div class="popover" role="tooltip"
  [ngStyle]="{top: top, left: left, display: display}"
  [ngClass]="classMap">
  <div class="arrow"></div>
  <div class="popover-title" *ngIf="title">
    {{title}}
  </div>
  <div class="popover-content" [innerHTML]="htmlContent">
    {{content}}
  </div>
</div>